Chapter 2 - Signals, Signs and Pavement Markings PA Driver??™s Manual CHAPTER 2: SIGNALS, SIGNS AND PAVEMENT MARKINGS This chapter provides the information you need to know about Pennsylvania roadways. It covers: ??? Signals ??? Signs ??? Pavement Markings SIGNALS Traffic signals are installed at intersections to control the movement of vehicles and pedestrians. Traffic signals are arranged in either vertical lines or horizontal lines. When they are arranged vertically, red is always on top and green on the bottom.…...
Civil EngineeringInfrastructureRoadTrafficTraffic LightTraffic Management
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